#include <bits/stdc++.h>
using namespace std;

int main(void)
{
    unsigned long long x1, y1, x2, y2;
    cin >> x1 >> y1 >> x2 >> y2;
    
    if(  !(x1==x2 && y1==y2) &&
        (((x1-x2)%4) == 0 && ((y1-y2)%4) == 0) ||
        (((x1-x2-2)%4) == 0 && ((y1-y2-2)%4) == 0) )
        cout << "Yes" << endl;
    else
        cout << "No" << endl;

    return 0;
}